*THE FIRST EVER STAND-ALONE FROM THE MILLION-COPY BESTSELLER* From the Sunday Times Bestselling author of CLOSE TO HOME comes a brilliant standalone thriller you'll never forget 'This book had me riveted to the page. It is original, inventive and totally 21st Century... Just brilliant!' Janice Hallett, author of The Appeal 'An excellent, wholly original whodunnit!' Gilly MacMillan 'Genius premise with all the twistiness you'd expect from Cara Hunter. Her best yet!' Victoria Selman 'Reads like True Crime-relentlessly twisty and utterly compelling' Shari Lapena, No. 1 bestselling author 'Sharp, fresh, surprising, and authentic... Absolutely brilliant.' Andrea Mara 'The attention to detail is incredible, and following along is so. Much. FUN.' Catherine Ryan Howard 'I adored it! So brilliantly put together, so full of twists and revelations.' JP Delaney 'Like a locked room Agatha Christie for the modern age...' Araminta Hall. 'The most addictive book you'll read all year ... Uniquely told